servicenow MTLS KIX path building failed || fatal alert: bad_certificate

  PKIX path building failed:

https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0521761

check server cert returned

openssl s_client -connect IP:port -status -showcerts </dev/null

For new root CA: 

Create protocol profile

add root CA certificate(subca2001)

addpk12 signed by above rootCA 

link protocol profile with pk12

            reassocated protocol porfile with mtls rest end point

https://stackoverflow.com/questions/11799733/received-fatal-alert-bad-certificate

Received fatal alert: bad_certificate

check openssl s_client -connect IP:port -status -showcerts </dev/null

acceptable client CA

its likely sever rejects client pk12 u present becaue CA signed pk12 is not in the acceptable client ca